Saliva evacuator



FIG. 1 is a front perspective view of a saliva evacuator showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the side opposite being substantially a mirror image; and

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a saliva evacuator, as shown and described. 